It automatically unlinks the desktop app if you don't open it for 30 days.
There is now at least a reminder on the phone app that will prompt you a few days before one of your desktop apps is about to get unlinked.
There is now at least a reminder on the phone app that will prompt you a few days before one of your desktop apps is about to get unlinked.
I'm not sure what's going on for you, but it seems really abnormal.